Typical average daily weather in Cascais in August is 21 with the high being 28 and lows around 18. We have provided a clearer breakdown here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 21 |
| High Temperature | 28 |
| Low Temperature | 18 |
| Sunshine Per Day | 9 |
Useful Links: Cascais Weather: Average Weather & Yearly Climate